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Add test vectors for key derivation functions (#320)

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Signed-off-by: Daniel Weiße <dw@edgeless.systems>
This commit is contained in:
Daniel Weiße 2022-08-01 09:11:13 +02:00 committed by GitHub
parent 87083ca624
commit 7baf98f014
7 changed files with 432 additions and 89 deletions
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2
bootstrapper/internal/initserver/initserver.go
View File

@ -154,7 +154,7 @@ func (s *Server) setupDisk(masterSecret, salt []byte) error {
}
uuid = strings.ToLower(uuid)
diskKey, err := crypto.DeriveKey(masterSecret, salt, []byte(crypto.HKDFInfoPrefix+uuid), 32)
diskKey, err := crypto.DeriveKey(masterSecret, salt, []byte(crypto.HKDFInfoPrefix+uuid), crypto.DerivedKeyLengthDefault)
if err != nil {
return err
}

64
bootstrapper/internal/initserver/initserver_test.go
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@ -4,12 +4,14 @@ import (
"context"
"errors"
"net"
"strings"
"sync"
"testing"
"time"
"github.com/edgelesssys/constellation/bootstrapper/initproto"
"github.com/edgelesssys/constellation/bootstrapper/internal/kubernetes/k8sapi/resources"
"github.com/edgelesssys/constellation/internal/crypto/testvector"
"github.com/edgelesssys/constellation/internal/file"
"github.com/edgelesssys/constellation/internal/logger"
"github.com/spf13/afero"
@ -187,6 +189,68 @@ func TestSSHProtoKeysToMap(t *testing.T) {
}
}
func TestSetupDisk(t *testing.T) {
testCases := map[string]struct {
uuid string
masterSecret []byte
salt []byte
wantKey []byte
}{
"lower case uuid": {
uuid: strings.ToLower(testvector.HKDF0xFF.Info),
masterSecret: testvector.HKDF0xFF.Secret,
salt: testvector.HKDF0xFF.Salt,
wantKey: testvector.HKDF0xFF.Output,
},
"upper case uuid": {
uuid: strings.ToUpper(testvector.HKDF0xFF.Info),
masterSecret: testvector.HKDF0xFF.Secret,
salt: testvector.HKDF0xFF.Salt,
wantKey: testvector.HKDF0xFF.Output,
},
}
for name, tc := range testCases {
t.Run(name, func(t *testing.T) {
assert := assert.New(t)
disk := &fakeDisk{
uuid: tc.uuid,
wantKey: tc.wantKey,
}
server := &Server{
disk: disk,
}
assert.NoError(server.setupDisk(tc.masterSecret, tc.salt))
})
}
}
type fakeDisk struct {
uuid string
wantKey []byte
}
func (d *fakeDisk) Open() error {
return nil
}
func (d *fakeDisk) Close() error {
return nil
}
func (d *fakeDisk) UUID() (string, error) {
return d.uuid, nil
}
func (d *fakeDisk) UpdatePassphrase(passphrase string) error {
if passphrase != string(d.wantKey) {
return errors.New("wrong passphrase")
}
return nil
}
type stubDisk struct {
openErr error
closeErr error

101
cli/internal/cmd/recover_test.go
View File

@ -3,9 +3,11 @@ package cmd
import (
"bytes"
"errors"
"strings"
"testing"
"github.com/edgelesssys/constellation/internal/constants"
"github.com/edgelesssys/constellation/internal/crypto/testvector"
"github.com/edgelesssys/constellation/internal/file"
"github.com/edgelesssys/constellation/internal/state"
"github.com/spf13/afero"
@ -42,98 +44,77 @@ func TestRecover(t *testing.T) {
validState := state.ConstellationState{CloudProvider: "GCP"}
invalidCSPState := state.ConstellationState{CloudProvider: "invalid"}
writeMasterSecret := func(require *require.Assertions) afero.Fs {
fs := afero.NewMemMapFs()
handler := file.NewHandler(fs)
require.NoError(handler.WriteJSON("constellation-mastersecret.json", masterSecret{Key: []byte("master-secret"), Salt: []byte("salt")}, file.OptNone))
return fs
}
testCases := map[string]struct {
setupFs func(*require.Assertions) afero.Fs
existingState state.ConstellationState
client *stubRecoveryClient
masterSecret testvector.HKDF
endpointFlag string
diskUUIDFlag string
masterSecretFlag string
configFlag string
stateless bool
wantErr bool
wantKey []byte
}{
"works": {
setupFs: writeMasterSecret,
existingState: validState,
client: &stubRecoveryClient{},
endpointFlag: "192.0.2.1",
diskUUIDFlag: "00000000-0000-0000-0000-000000000000",
wantKey: []byte{
0xcb, 0x31, 0x9d, 0x3d, 0xe0, 0xb7, 0x8a, 0xe9, 0x20, 0xc0, 0x62, 0x00, 0x8f, 0xe4, 0x58, 0xa1,
0x87, 0x85, 0x5d, 0xa0, 0xca, 0xe2, 0x04, 0x5c, 0x80, 0xe8, 0xe6, 0xd5, 0x8a, 0x6c, 0xcb, 0x49,
},
diskUUIDFlag: testvector.HKDFZero.Info,
masterSecret: testvector.HKDFZero,
},
"uppercase disk uuid works": {
setupFs: writeMasterSecret,
existingState: validState,
client: &stubRecoveryClient{},
endpointFlag: "192.0.2.1",
diskUUIDFlag: "ABCDEFAB-CDEF-ABCD-ABCD-ABCDEFABCDEF",
wantKey: []byte{
0x9b, 0xb8, 0x4a, 0x62, 0x01, 0xb3, 0x32, 0xf6, 0xf2, 0x79, 0x43, 0x09, 0x86, 0xe7, 0x25, 0x0e,
0xd2, 0x77, 0xcb, 0x14, 0xe8, 0x8f, 0x38, 0xab, 0xe7, 0xd6, 0x25, 0x14, 0xa5, 0xa1, 0xff, 0xda,
},
diskUUIDFlag: strings.ToUpper(testvector.HKDF0xFF.Info),
masterSecret: testvector.HKDF0xFF,
},
"lowercase disk uuid results in same key": {
setupFs: writeMasterSecret,
existingState: validState,
client: &stubRecoveryClient{},
endpointFlag: "192.0.2.1",
diskUUIDFlag: "abcdefab-cdef-abcd-abcd-abcdefabcdef",
wantKey: []byte{
0x9b, 0xb8, 0x4a, 0x62, 0x01, 0xb3, 0x32, 0xf6, 0xf2, 0x79, 0x43, 0x09, 0x86, 0xe7, 0x25, 0x0e,
0xd2, 0x77, 0xcb, 0x14, 0xe8, 0x8f, 0x38, 0xab, 0xe7, 0xd6, 0x25, 0x14, 0xa5, 0xa1, 0xff, 0xda,
},
diskUUIDFlag: strings.ToLower(testvector.HKDF0xFF.Info),
masterSecret: testvector.HKDF0xFF,
},
"missing flags": {
setupFs: func(require *require.Assertions) afero.Fs { return afero.NewMemMapFs() },
wantErr: true,
},
"missing config": {
setupFs: writeMasterSecret,
endpointFlag: "192.0.2.1",
diskUUIDFlag: "00000000-0000-0000-0000-000000000000",
diskUUIDFlag: testvector.HKDFZero.Info,
masterSecret: testvector.HKDFZero,
configFlag: "nonexistent-config",
wantErr: true,
},
"missing state": {
setupFs: writeMasterSecret,
existingState: validState,
endpointFlag: "192.0.2.1",
diskUUIDFlag: "00000000-0000-0000-0000-000000000000",
diskUUIDFlag: testvector.HKDFZero.Info,
masterSecret: testvector.HKDFZero,
stateless: true,
wantErr: true,
},
"invalid cloud provider": {
setupFs: writeMasterSecret,
existingState: invalidCSPState,
endpointFlag: "192.0.2.1",
diskUUIDFlag: "00000000-0000-0000-0000-000000000000",
diskUUIDFlag: testvector.HKDFZero.Info,
masterSecret: testvector.HKDFZero,
wantErr: true,
},
"connect fails": {
setupFs: writeMasterSecret,
existingState: validState,
client: &stubRecoveryClient{connectErr: errors.New("connect failed")},
endpointFlag: "192.0.2.1",
diskUUIDFlag: "00000000-0000-0000-0000-000000000000",
diskUUIDFlag: testvector.HKDFZero.Info,
masterSecret: testvector.HKDFZero,
wantErr: true,
},
"pushing state key fails": {
setupFs: writeMasterSecret,
existingState: validState,
client: &stubRecoveryClient{pushStateDiskKeyErr: errors.New("pushing key failed")},
endpointFlag: "192.0.2.1",
diskUUIDFlag: "00000000-0000-0000-0000-000000000000",
diskUUIDFlag: testvector.HKDFZero.Info,
masterSecret: testvector.HKDFZero,
wantErr: true,
},
}
@ -160,7 +141,10 @@ func TestRecover(t *testing.T) {
if tc.configFlag != "" {
require.NoError(cmd.Flags().Set("config", tc.configFlag))
}
fileHandler := file.NewHandler(tc.setupFs(require))
fs := afero.NewMemMapFs()
fileHandler := file.NewHandler(fs)
require.NoError(fileHandler.WriteJSON("constellation-mastersecret.json", masterSecret{Key: tc.masterSecret.Secret, Salt: tc.masterSecret.Salt}, file.OptNone))
if !tc.stateless {
require.NoError(fileHandler.WriteJSON(constants.StateFilename, tc.existingState, file.OptNone))
}
@ -174,7 +158,7 @@ func TestRecover(t *testing.T) {
assert.NoError(err)
assert.Contains(out.String(), "Pushed recovery key.")
assert.Equal(tc.wantKey, tc.client.pushStateDiskKeyKey)
assert.Equal(tc.masterSecret.Output, tc.client.pushStateDiskKeyKey)
})
}
}
@ -245,40 +229,13 @@ func TestParseRecoverFlags(t *testing.T) {
func TestDeriveStateDiskKey(t *testing.T) {
testCases := map[string]struct {
masterKey []byte
salt []byte
diskUUID string
wantStateDiskKey []byte
masterSecret testvector.HKDF
}{
"all zero": {
masterKey: []byte{
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
},
salt: []byte{
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
},
diskUUID: "00000000-0000-0000-0000-000000000000",
wantStateDiskKey: []byte{
0x2b, 0x5c, 0x82, 0x9f, 0x69, 0x1b, 0xfd, 0x42, 0x32, 0xf8, 0xaa, 0xc4, 0x64, 0xbc, 0xcc, 0x07,
0xe6, 0x05, 0xc7, 0xc8, 0xe8, 0x2c, 0xbc, 0xa0, 0x98, 0x37, 0xe8, 0x6d, 0x0b, 0x6d, 0x06, 0x65,
},
masterSecret: testvector.HKDFZero,
},
"all 0xff": {
masterKey: []byte{
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
},
salt: []byte{
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
},
diskUUID: "ffffffff-ffff-ffff-ffff-ffffffffffff",
wantStateDiskKey: []byte{
0x14, 0x84, 0xaa, 0x39, 0xd3, 0x41, 0x5e, 0x90, 0x6e, 0x07, 0x94, 0x0f, 0xf2, 0x15, 0xd8, 0xb1,
0xee, 0xe7, 0x05, 0xd3, 0x02, 0x7d, 0xba, 0x93, 0x30, 0x6a, 0xf4, 0xab, 0xff, 0x4f, 0x70, 0xbe,
},
masterSecret: testvector.HKDF0xFF,
},
}
@ -286,10 +243,10 @@ func TestDeriveStateDiskKey(t *testing.T) {
t.Run(name, func(t *testing.T) {
assert := assert.New(t)
stateDiskKey, err := deriveStateDiskKey(tc.masterKey, tc.salt, tc.diskUUID)
stateDiskKey, err := deriveStateDiskKey(tc.masterSecret.Secret, tc.masterSecret.Salt, tc.masterSecret.Info)
assert.NoError(err)
assert.Equal(tc.wantStateDiskKey, stateDiskKey)
assert.Equal(tc.masterSecret.Output, stateDiskKey)
})
}
}

45
internal/attestation/attestation_test.go Normal file
View File

@ -0,0 +1,45 @@
package attestation
import (
"testing"
"github.com/edgelesssys/constellation/internal/crypto/testvector"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestDeriveClusterID(t *testing.T) {
require := require.New(t)
assert := assert.New(t)
testvector := testvector.HKDFClusterID
clusterID, err := DeriveClusterID(testvector.Secret, testvector.Salt)
require.NoError(err)
assert.Equal(testvector.Output, clusterID)
clusterIDdiff, err := DeriveClusterID(testvector.Secret, []byte("different-salt"))
require.NoError(err)
assert.NotEqual(clusterID, clusterIDdiff)
clusterIDdiff, err = DeriveClusterID([]byte("different-secret"), testvector.Salt)
require.NoError(err)
assert.NotEqual(clusterID, clusterIDdiff)
}
func TestDeriveMeasurementSecret(t *testing.T) {
require := require.New(t)
assert := assert.New(t)
testvector := testvector.HKDFMeasurementSecret
measurementSecret, err := DeriveMeasurementSecret(testvector.Secret, testvector.Salt)
require.NoError(err)
assert.Equal(testvector.Output, measurementSecret)
measurementSecretdiff, err := DeriveMeasurementSecret(testvector.Secret, []byte("different-salt"))
require.NoError(err)
assert.NotEqual(measurementSecret, measurementSecretdiff)
measurementSecretdiff, err = DeriveMeasurementSecret([]byte("different-secret"), testvector.Salt)
require.NoError(err)
assert.NotEqual(measurementSecret, measurementSecretdiff)
}

54
internal/crypto/crypto_test.go
View File

@ -3,6 +3,7 @@ package crypto
import (
"testing"
"github.com/edgelesssys/constellation/internal/crypto/testvector"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"go.uber.org/goleak"
@ -28,6 +29,59 @@ func TestDeriveKey(t *testing.T) {
key3, err := DeriveKey([]byte("secret"), []byte("salt"), []byte("second"), 32)
require.NoError(err)
assert.NotEqual(key1, key3)
zeroInput := testvector.HKDFZero
out, err := DeriveKey(zeroInput.Secret, zeroInput.Salt, []byte(zeroInput.InfoPrefix+zeroInput.Info), zeroInput.Length)
require.NoError(err)
assert.Equal(zeroInput.Output, out)
fInput := testvector.HKDF0xFF
out, err = DeriveKey(fInput.Secret, fInput.Salt, []byte(fInput.InfoPrefix+fInput.Info), fInput.Length)
require.NoError(err)
assert.Equal(fInput.Output, out)
}
func TestVectorsHKDF(t *testing.T) {
testCases := map[string]struct {
secret []byte
salt []byte
info []byte
length uint
wantKey []byte
}{
"rfc Test Case 1": {
secret: testvector.HKDFrfc1.Secret,
salt: testvector.HKDFrfc1.Salt,
info: []byte(testvector.HKDFrfc1.Info),
length: testvector.HKDFrfc1.Length,
wantKey: testvector.HKDFrfc1.Output,
},
"rfc Test Case 2": {
secret: testvector.HKDFrfc2.Secret,
salt: testvector.HKDFrfc2.Salt,
info: []byte(testvector.HKDFrfc2.Info),
length: testvector.HKDFrfc2.Length,
wantKey: testvector.HKDFrfc2.Output,
},
"rfc Test Case 3": {
secret: testvector.HKDFrfc3.Secret,
salt: testvector.HKDFrfc3.Salt,
info: []byte(testvector.HKDFrfc3.Info),
length: testvector.HKDFrfc3.Length,
wantKey: testvector.HKDFrfc3.Output,
},
}
for name, tc := range testCases {
t.Run(name, func(t *testing.T) {
assert := assert.New(t)
require := require.New(t)
out, err := DeriveKey(tc.secret, tc.salt, tc.info, tc.length)
require.NoError(err)
assert.Equal(tc.wantKey, out)
})
}
}
func TestGenerateCertificateSerialNumber(t *testing.T) {

157
internal/crypto/testvector/testvector.go Normal file
View File

@ -0,0 +1,157 @@
// Package testvector provides test vectors for key derivation and crypto functions.
package testvector
// HKDF holds test vectors for the HKDF function.
type HKDF struct {
Secret []byte
Salt []byte
Info string
InfoPrefix string
Length uint
Output []byte
}
// HKDFrfc1 is a test vector provided by the HKDF RFC.
// See: https://datatracker.ietf.org/doc/html/rfc5869#appendix-A.1
var HKDFrfc1 = HKDF{
Secret: []byte{
0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
},
Salt: []byte{
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c,
},
Info: string([]byte{0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9}),
Length: 42,
Output: []byte{
0x3c, 0xb2, 0x5f, 0x25, 0xfa, 0xac, 0xd5, 0x7a, 0x90, 0x43, 0x4f, 0x64, 0xd0, 0x36, 0x2f, 0x2a,
0x2d, 0x2d, 0x0a, 0x90, 0xcf, 0x1a, 0x5a, 0x4c, 0x5d, 0xb0, 0x2d, 0x56, 0xec, 0xc4, 0xc5, 0xbf,
0x34, 0x00, 0x72, 0x08, 0xd5, 0xb8, 0x87, 0x18, 0x58, 0x65,
},
}
// HKDFrfc2 is a test vector provided by the HKDF RFC.
// See: https://datatracker.ietf.org/doc/html/rfc5869#appendix-A.2
var HKDFrfc2 = HKDF{
Secret: []byte{
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
},
Salt: []byte{
0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
},
Info: string([]byte{
0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff,
}),
Length: 82,
Output: []byte{
0xb1, 0x1e, 0x39, 0x8d, 0xc8, 0x03, 0x27, 0xa1, 0xc8, 0xe7, 0xf7, 0x8c, 0x59, 0x6a, 0x49, 0x34,
0x4f, 0x01, 0x2e, 0xda, 0x2d, 0x4e, 0xfa, 0xd8, 0xa0, 0x50, 0xcc, 0x4c, 0x19, 0xaf, 0xa9, 0x7c,
0x59, 0x04, 0x5a, 0x99, 0xca, 0xc7, 0x82, 0x72, 0x71, 0xcb, 0x41, 0xc6, 0x5e, 0x59, 0x0e, 0x09,
0xda, 0x32, 0x75, 0x60, 0x0c, 0x2f, 0x09, 0xb8, 0x36, 0x77, 0x93, 0xa9, 0xac, 0xa3, 0xdb, 0x71,
0xcc, 0x30, 0xc5, 0x81, 0x79, 0xec, 0x3e, 0x87, 0xc1, 0x4c, 0x01, 0xd5, 0xc1, 0xf3, 0x43, 0x4f,
0x1d, 0x87,
},
}
// HKDFrfc3 is a test vector provided by the HKDF RFC.
// See: https://datatracker.ietf.org/doc/html/rfc5869#appendix-A.3
var HKDFrfc3 = HKDF{
Secret: []byte{
0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
},
Length: 42,
Output: []byte{
0x8d, 0xa4, 0xe7, 0x75, 0xa5, 0x63, 0xc1, 0x8f, 0x71, 0x5f, 0x80, 0x2a, 0x06, 0x3c, 0x5a, 0x31,
0xb8, 0xa1, 0x1f, 0x5c, 0x5e, 0xe1, 0x87, 0x9e, 0xc3, 0x45, 0x4e, 0x5f, 0x3c, 0x73, 0x8d, 0x2d,
0x9d, 0x20, 0x13, 0x95, 0xfa, 0xa4, 0xb6, 0x1a, 0x96, 0xc8,
},
}
// HKDFZero is a test vector with zero values for HKDF key derivation.
var HKDFZero = HKDF{
Secret: []byte{
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
},
Salt: []byte{
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
},
Info: "00000000-0000-0000-0000-000000000000",
InfoPrefix: "key-",
Length: 32,
Output: []byte{
0x2b, 0x5c, 0x82, 0x9f, 0x69, 0x1b, 0xfd, 0x42, 0x32, 0xf8, 0xaa, 0xc4, 0x64, 0xbc, 0xcc, 0x07,
0xe6, 0x05, 0xc7, 0xc8, 0xe8, 0x2c, 0xbc, 0xa0, 0x98, 0x37, 0xe8, 0x6d, 0x0b, 0x6d, 0x06, 0x65,
},
}
// HKDF0xFF is a test vector with 0xFF values for HKDF key derivation.
var HKDF0xFF = HKDF{
Secret: []byte{
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
},
Salt: []byte{
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
},
Info: "ffffffff-ffff-ffff-ffff-ffffffffffff",
InfoPrefix: "key-",
Length: 32,
Output: []byte{
0x14, 0x84, 0xaa, 0x39, 0xd3, 0x41, 0x5e, 0x90, 0x6e, 0x07, 0x94, 0x0f, 0xf2, 0x15, 0xd8, 0xb1,
0xee, 0xe7, 0x05, 0xd3, 0x02, 0x7d, 0xba, 0x93, 0x30, 0x6a, 0xf4, 0xab, 0xff, 0x4f, 0x70, 0xbe,
},
}
// HKDFClusterID is a test vector with "clusterID" as info for HKDF key derivation.
var HKDFClusterID = HKDF{
Secret: []byte{
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
},
Salt: []byte{
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
},
Info: "clusterID",
InfoPrefix: "key-",
Length: 32,
Output: []byte{
0x12, 0x8c, 0x16, 0x43, 0x78, 0xfe, 0x87, 0x67, 0xf9, 0x98, 0xfb, 0xdf, 0xe4, 0xb4, 0xd6, 0x46,
0x3e, 0xc5, 0xae, 0x1b, 0x66, 0x4e, 0xa5, 0x99, 0x9b, 0xc2, 0x74, 0x17, 0x60, 0x7a, 0xe9, 0xb6,
},
}
// HKDFMeasurementSecret is a test vector with "measurementSecret" as info for HKDF key derivation.
var HKDFMeasurementSecret = HKDF{
Secret: []byte{
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
},
Salt: []byte{
0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
},
Info: "measurementSecret",
InfoPrefix: "key-",
Length: 32,
Output: []byte{
0x47, 0x90, 0x57, 0x88, 0x91, 0xf3, 0xfe, 0x6c, 0xc2, 0x2c, 0xb6, 0x61, 0xec, 0xdc, 0x1b, 0x7e,
0x33, 0x12, 0x1b, 0x12, 0x87, 0x54, 0x6a, 0x52, 0xba, 0x33, 0xa9, 0x13, 0x67, 0x19, 0xc2, 0x13,
},
}

98
kms/kms/cluster/cluster_test.go
View File

@ -2,9 +2,12 @@ package cluster
import (
"context"
"strings"
"testing"
"github.com/edgelesssys/constellation/internal/crypto/testvector"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"go.uber.org/goleak"
)
@ -13,31 +16,94 @@ func TestMain(m *testing.M) {
}
func TestClusterKMS(t *testing.T) {
testVector := testvector.HKDF0xFF
assert := assert.New(t)
kms := &ClusterKMS{}
masterKey := []byte("Constellation")
kms := New(testVector.Salt)
key, err := kms.GetDEK(context.Background(), "", "key-1", 32)
assert.Error(err)
assert.Nil(key)
err = kms.CreateKEK(context.Background(), "", masterKey)
err = kms.CreateKEK(context.Background(), "", testVector.Secret)
assert.NoError(err)
assert.Equal(masterKey, kms.masterKey)
assert.Equal(testVector.Secret, kms.masterKey)
key1, err := kms.GetDEK(context.Background(), "", "key-1", 32)
keyLower, err := kms.GetDEK(
context.Background(),
"",
strings.ToLower(testVector.InfoPrefix+testVector.Info),
int(testVector.Length),
)
assert.NoError(err)
assert.Len(key1, 32)
assert.Equal(testVector.Output, keyLower)
key2, err := kms.GetDEK(context.Background(), "", "key-1", 32)
// output of the KMS should be case sensitive
keyUpper, err := kms.GetDEK(
context.Background(),
"",
strings.ToUpper(testVector.InfoPrefix+testVector.Info),
int(testVector.Length),
)
assert.NoError(err)
assert.Equal(key1, key2)
key3, err := kms.GetDEK(context.Background(), "", "key-2", 32)
assert.NoError(err)
assert.NotEqual(key1, key3)
key, err = kms.GetDEK(context.Background(), "", "key", 64)
assert.NoError(err)
assert.Len(key, 64)
assert.NotEqual(key, keyUpper)
}
func TestVectorsHKDF(t *testing.T) {
testCases := map[string]struct {
kek []byte
salt []byte
dekID string
dekSize uint
wantKey []byte
}{
"rfc Test Case 1": {
kek: testvector.HKDFrfc1.Secret,
salt: testvector.HKDFrfc1.Salt,
dekID: testvector.HKDFrfc1.Info,
dekSize: testvector.HKDFrfc1.Length,
wantKey: testvector.HKDFrfc1.Output,
},
"rfc Test Case 2": {
kek: testvector.HKDFrfc2.Secret,
salt: testvector.HKDFrfc2.Salt,
dekID: testvector.HKDFrfc2.Info,
dekSize: testvector.HKDFrfc2.Length,
wantKey: testvector.HKDFrfc2.Output,
},
"rfc Test Case 3": {
kek: testvector.HKDFrfc3.Secret,
salt: testvector.HKDFrfc3.Salt,
dekID: testvector.HKDFrfc3.Info,
dekSize: testvector.HKDFrfc3.Length,
wantKey: testvector.HKDFrfc3.Output,
},
"HKDF zero": {
kek: testvector.HKDFZero.Secret,
salt: testvector.HKDFZero.Salt,
dekID: testvector.HKDFZero.InfoPrefix + testvector.HKDFZero.Info,
dekSize: testvector.HKDFZero.Length,
wantKey: testvector.HKDFZero.Output,
},
"HKDF 0xFF": {
kek: testvector.HKDF0xFF.Secret,
salt: testvector.HKDF0xFF.Salt,
dekID: testvector.HKDF0xFF.InfoPrefix + testvector.HKDF0xFF.Info,
dekSize: testvector.HKDF0xFF.Length,
wantKey: testvector.HKDF0xFF.Output,
},
}
for name, tc := range testCases {
t.Run(name, func(t *testing.T) {
assert := assert.New(t)
require := require.New(t)
kms := New(tc.salt)
require.NoError(kms.CreateKEK(context.Background(), "", tc.kek))
out, err := kms.GetDEK(context.Background(), "", tc.dekID, int(tc.dekSize))
require.NoError(err)
assert.Equal(tc.wantKey, out)
})
}
}